lkml.org 
[lkml]   [2018]   [Aug]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v2 25/32] selftests/ftrace: Add function filter on module testcase
    Date
    Add a testcase for function filter on module.

    Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
    ---
    .../ftrace/test.d/ftrace/func_mod_trace.tc | 24 ++++++++++++++++++++
    1 file changed, 24 insertions(+)
    create mode 100644 tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc

    diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc
    new file mode 100644
    index 000000000000..359380c3834f
    --- /dev/null
    +++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc
    @@ -0,0 +1,24 @@
    +#!/bin/sh
    +# SPDX-License-Identifier: GPL-2.0
    +# description: ftrace - function trace on module
    +
    +[ ! -f set_ftrace_filter ] && exit_unsupported
    +
    +: "mod: allows to filter a non exist function"
    +echo 'non_exist_func:mod:non_exist_module' > set_ftrace_filter
    +grep -q "non_exist_func" set_ftrace_filter
    +
    +: "mod: on exist module"
    +echo '*:mod:trace_printk' > set_ftrace_filter
    +if ! modprobe trace-printk.ko ; then
    + echo "No trace-printk sample module - please make CONFIG_SAMPLE_TRACE_PRINTK=
    +m"
    + exit_unresolved;
    +fi
    +
    +: "Wildcard should be resolved after loading module"
    +grep -q "trace_printk_irq_work" set_ftrace_filter
    +
    +: "After removing the filter becomes empty"
    +rmmod trace_printk
    +test `cat set_ftrace_filter | wc -l` -eq 0
    \
     
     \ /
      Last update: 2018-08-16 18:42    [W:4.102 / U:0.128 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site